/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Servlets;

import DAO.ResourcesDAO;
import Entidades.ResourceEnt;
import Entidades.SFTPFileCopy1;
import Utilidades.Constantes;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.IOUtils;

/**
 *
 * @author usuario
 */
@WebServlet(name = "DescargarCartaServ", urlPatterns = {"/DescargarCartaServ"})
public class DescargarCartaServ extends HttpServlet {
    
    ResourcesDAO resource;
    SFTPFileCopy1 negFTP;
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        
        response.setContentType("text/html;charset=UTF-8");
        
        
        List<ResourceEnt> lstReso;
        resource = new ResourcesDAO();
        
        String rutaCarta = "";
        
        negFTP = new SFTPFileCopy1();
        FileOutputStream outPutStream;
        byte[] bytes;
        File file;
        InputStream inputStream;
        
        try {
            lstReso = resource.busquedaResources();
            
            for (ResourceEnt res : lstReso) {

                if(res.getClave().trim().equals("RUTA_CARTA_DER")){
                     rutaCarta = res.getValor();
                 }
            } 
            
        } catch (SQLException ex) {
            Logger.getLogger(DescargarCartaServ.class.getName()).log(Level.SEVERE, null, ex);
        }
    
         
          
                String ruta = negFTP.retornarRutaDownload(rutaCarta.trim());
                file = new File(ruta);               
 
                inputStream = new FileInputStream(file);      
                bytes = IOUtils.toByteArray(inputStream);
                response.setHeader("Content-disposition","attachment; filename="+ruta.replaceAll(" ", "_"));
                response.getOutputStream().write(bytes);
                response.getOutputStream().close();
                request.getRequestDispatcher(Constantes.MENSAJE_CREACION).forward(request, response);

        

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
        
        

    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
